Can you blend overnight oats into a smoothie?

Yes. Soaked oats blend smoothly because they have already softened, which gives the smoothie body without any grit.

How do I make a chocolate smoothie thicker?

Use less milk, add ice, or use a frozen banana. Soaked oats and peanut butter thicken it too.

Can I make it the night before?

You can blend it ahead and refrigerate it, but it gets thicker over time. Loosen it with a little milk before drinking.

SmoothiesContinental

Chocolate Banana Smoothie

Tastes like a chocolate milkshake but fuels you like a proper meal. The cocoa and peanut butter combination creates rich, indulgent flavor. Perfect post-workout, when you're craving something sweet, or when you need serious nutrition that tastes like dessert.

Time: 5 min
Method: Blend
Serves: 1
Energy: 660 kcal
Protein: 24 g

Go to the method

Tall glass of chocolate banana smoothie made with oats, cocoa powder, banana and peanut butter

Method

Step 1: Put your DIY Oats in the blender.
Step 2: Add cocoa powder, banana, and peanut butter.
Step 3: Add milk to desired consistency.
Step 4: Blend until completely smooth.
Step 5: This tastes exactly like a chocolate peanut butter milkshake but provides substantial nutrition.
Step 6: Drink immediately or refrigerate.
Step 7: Add ice cubes for extra thickness.

Notes from the Department

Like a milkshake

Nutrition

1 serving

660 cal | 24g protein | 16g fiber

2 servings

1320 cal | 48g protein | 32g fiber

Estimates. Not medical advice.

Why it works

Blending soaked oats is the trick. They are already soft from the night in the fridge, so they turn smooth and thick instead of gritty. Cocoa and peanut butter are a pairing that needs no defending, and banana supplies the sweetness so you are not reaching for sugar.

Getting the thickness right

Start with less milk than you think and add more as you blend. A few ice cubes make it colder and thicker, closer to a proper shake. Frozen banana does the same job and saves the ice tray. Blend until there are no flecks of oat left. Patience here is the whole recipe.

If you are using a homemade base

Soak rolled oats in milk with chia and a few almonds overnight, then tip the lot into the blender.

Swaps

Almond butter works in place of peanut butter and gives a milder, toastier taste. Oat milk keeps it dairy-free if your base is the vegan jar.

Storage

Best drunk straight away. It will keep in the fridge for a few hours, but it thickens as it sits, so shake or stir in a splash of milk before drinking. Per serving: around 660 calories, 24g protein and 16g fibre.

Questions people ask

Can you blend overnight oats into a smoothie?: Yes. Soaked oats blend smoothly because they have already softened, which gives the smoothie body without any grit.
How do I make a chocolate smoothie thicker?: Use less milk, add ice, or use a frozen banana. Soaked oats and peanut butter thicken it too.
Can I make it the night before?: You can blend it ahead and refrigerate it, but it gets thicker over time. Loosen it with a little milk before drinking.